how does the geats celabrate their victory

Answers
2

Hrothgar went to the hall, beheld Grendel's arm, and spoke: "Praise God for this miracle. Through his power a man has achieved that which we ourselves were unable to do. Praise be to the woman who gave birth to this man. Beowulf, henceforth I shall love you like a son."

Then Beowulf, son of Ecgtheow, spoke, recounting the details of his battle with Grendel. Unferth, too, was present, but he made no more boastful speeches, now having seen the monster's dismembered hand with its steel-like claws.

15

Strait away Heorot was adorned for a great feast. A large crowd gathered there in celebration. There the son of Healfdene gave to Beowulf many lavish gifts, including a golden ensign, a helmet, a coat of chainmail, a mighty sword, and eight horses with golden bridles.

16

Moreover, Hrothgar bestowed precious heirlooms upon each man who had crossed the sea with Beowulf. The celebration continued with singing and music. The harp was struck, and the king's bard presented the oft-sung Lay of King Finn.

17

After the gleeman had finished singing Wealhtheow [Hrothgar's wife] came forth. She presented her king with a golden cup, saying: "Be gracious toward the Geats and mindful of gifts. Be generous while you may."

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Thereupon many additional precious gifts were brought to Beowulf, including two armlets, rings, armor, and the greatest collar that I have ever heard tell of since Hama carried away the necklace of the Brisings.

"Receive this collar with joy, and prosper well, dear Beowulf," said Wealhtheow.

The celebration then continued with food and wine. When evening fell Hrothgar returned to his lodgings. The guards, as they had often done before, cleared the benches and covered them with bedding and pillows. Doomed to death, one of the revelers laid himself down to rest with his comrades.

Source(s)

Sorry, that was the celebration after Beowulf's slaying of Grendel; they didn't celebrate the death of Grendel's mother, but when they got home.... the Geats celebrated and bestowed honors;

28-30

King Hygelac greeted the returning hero ceremoniously. Burning with curiosity about the latter's adventures, he asked: "How did you fare on your journey to help the Danes?"

"My battle with Grendel is already known to many," replied Beowulf. Then he recounted in detail his entire adventure: his arrival at Heorot, his hand-to-hand fight with Grendel, his slaying of the monster's mother at the bottom of the mere, and his reward of great treasures at the hand of King Hrothgar.

31

Beowulf concluded his account by praising the generosity of King Hrothgar. "He followed courtly custom," said the hero. "He withheld nothing that was my due; and I wish now to give to you, my king, the great treasures that he gave me as a reward."

Beowulf then had the arms and treasures brought forth, and he told the story behind each heirloom.

King Hygelac responded by presenting to Beowulf Hrethel's sword, a famous heirloom. Furthermore, he gave him seven thousand hides of land and a hall. Then he named him prince and successor to his own throne.

At Hygelac's death Beowulf became king. He ruled wisely for fifty winters, and then a reign of terror visited the land of the Geats.